Sizing Sheet Metal Screws

Sequences like 4 30 x 10 1 8 10 x 4 6 and m5 4 x 15 may seem meaningless but they say a lot and you need the right screw to do the job.

Sizing sheet metal screws.

Us sheet metal screw diameters. After a hole has been tapped by a thread cutting screw it can be replaced by a machine screw of the same size diameter and number of threads per inch. Sizes of 4 40 to 3 8 16 are common. The engineered drill point and flute remove material efficiently and properly size the hole for threads.

78 15 99 15. Self drilling screws also called teks have a tip that resembles a drill and often have spaced threads like sheet metal screws. It s pretty easy to do all you need is a measuring tape or a ruler and the screws in question. Print this page.

Purchasing or using the wrong type of screw can lead to wasted effort time expenses or a failed project. Length of screws bolts. The diameter refers to the major diameter or outside edge of the threads. Grainger offers a huge selection of sheet metal screws for your hvac and other metalwork projects.

Decimal 0 060 1 073 2 086 3 099 4 112 5 125 6 138 7 151 8 164 9 177 10 190 12 216 14 250. Length is the distance from the flat part of the head to the tip or blunt end of the screw or bolt. Hilitchi 190 pieces 10 stainless phillips drive hex washer head self drilling sheet metal tek screws with drill point 1 2 to 1 1 4 size inside plastic box 8 by hilitchi 15 78 15. Drill bit size inch 0 80 3 64in 1 64.

Teks 9 x 1 1 2 in. Decimal nearest fractional 4 112. Sheet metal screw to drill bit size table screw size drill bit size 2 3 32in 4 1 8in 6 5 32in 8 3 16in 10 13 64in 12 1 4in 1 4in 9 32in 5 16in 21 64in 3 8in 25 64in. Hex head roofing screws teks 9 x 1 1 2 in.

Hex head roofing screws provide secure metal to metal fastening with strong holding power without the need to pre drill. Steel hardened steel low carbon steel and stainless steel give sheet metal screws long lasting durability. 1 4 and larger diameters are shown as inches. Select the head type and overall size you need in lengths ranging from 1 4 l to 4 l.

Understanding screw sizes inch standards screws with a diameter smaller than 1 4 have a nominal size indicated by a number e g. Almost all screw head types will either be flat on. The simplest way to remember how to measure length. If the screw size includes a dash with a number following it that is the.

Tap and drill size chart standard tap size.